Deputy Police Commissioner Belinda Alvarez-Groneman has been an integral part of the Suffolk County Police Department since 1981 when she started as a Community Service Aide. Four years later, she transitioned to the role of a police officer. Throughout her distinguished career, she has been recognized numerous times for outstanding police work. In 1997, she made history as the first Hispanic woman to serve on the Police Commissioner's staff as Special Assistant, focusing on enhancing police-community relations. Her leadership was instrumental in revitalizing the 3rd Precinct Explorer program, empowering youth in the community.

After retiring as a detective, Commissioner Alvarez-Groneman continued her commitment to public service by joining the Office of Congressman Lee Zeldin during his inaugural term in 2015. In this role, she dedicated herself to serving the community in various capacities, including immigration, security, and law enforcement.

Beyond her professional endeavors, Commissioner Alvarez-Groneman has selflessly devoted countless hours to volunteering for numerous community organizations. She organized annual events for three significant causes: the Suffolk County Executive’s Hispanic Heritage Month Celebration, Adelante’s Puerto Rican/Hispanic Day Parade committee, and the Adopt-a-Family at Christmas Program, sponsored jointly by the Suffolk County Police Department and the Suffolk County District Attorney’s Office through Pronto of Long Island.

Commissioner Alvarez-Groneman's commitment to community service extends to her leadership roles in various advisory boards, including chairing the Suffolk County Executive's Advisory Board and serving on former Rep. Rick Lazio’s Hispanic Advisory Board. Additionally, she served as President of the Suffolk County Police Officers Hispanic Society from 1989 to 1993.

Commissioner Alvarez-Groneman's extensive involvement in community organizations speaks volumes about her dedication to making a positive impact. As a retired President and Board member of Pronto of Long Island, Chair of the Suffolk County Community College Foundation Board, Chair of the Town of Islip Youth Board, and a member of the Brentwood-Islandia Lions Club, she continues to embody the spirit of service.

In all her endeavors, Commissioner Alvarez-Groneman has demonstrated unwavering dedication to fostering positive relationships between law enforcement and the community, leaving a lasting impact on Suffolk County and beyond.